If by "changed his character" you mean he came up with new catchphrases once or twice a year, sure. The only time the Rock ever really entertained me was his short run in 2003. Other than that, I would put him below Austin and I was never really an Austin fan either.

I guess he was also somewhat entertaining when he had someone good to play off of like Jericho, but a lot of that was Jericho or whoever else. On his own or with some random backstage interviewer, it was just the same set-ups and the same punchlines to the same jokes over and over.

Also, it's hard to call somone the greatest of all time when their career was all of five or six years, especially since the first year or so was really nothing to brag about.

7 years was long enough to cement his place as one of the greatest ever (greatest in my opinion). In fact, it just goes to show what an amazing impact he actually made, considering the short space of time he was there.

And yes, he had catchphrases, so? He was funny as hell on the mic regardless, so they didn't bother me too tough.